/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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#ifndef nsICharRepresentable_h__
#define nsICharRepresentable_h__

#include "nscore.h"
#include "nsISupports.h"

// {A4D9A521-185A-11d3-B3BD-00805F8A6670}
#define NS_ICHARREPRESENTABLE_IID \
{ 0xa4d9a521, 0x185a, 0x11d3, { 0xb3, 0xbd, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70 } }


/* 
   The following two macro have been duplicate in umap.c. 
   You need to change both place to make it work 
*/
#define IS_REPRESENTABLE(info, c) (((info)[(c) >> 5] >> ((c) & 0x1f)) & 1L)
#define SET_REPRESENTABLE(info, c)  (info)[(c) >> 5] |= (1L << ((c) & 0x1f))
#define CLEAR_REPRESENTABLE(info, c)  (info)[(c) >> 5] &= (~(1L << ((c) & 0x1f)))

// number of PRUint32 in the 64Kbit char map
#define UCS2_MAP_LEN 2048

/**
 */
class nsICharRepresentable : public nsISupports
{
public:
  NS_DECLARE_STATIC_IID_ACCESSOR(NS_ICHARREPRESENTABLE_IID)

  NS_IMETHOD FillInfo(PRUint32* aInfo) = 0;

};

NS_DEFINE_STATIC_IID_ACCESSOR(nsICharRepresentable, NS_ICHARREPRESENTABLE_IID)

#endif /* nsIUnicodeDecoder_h__ */
